Primary gear type cleat-shaped transmission box body

Abstract

The utility model belongs to the technical field of automobile hubs, and particularly relates to a first-stage gear type cleat-shaped transmission box body which comprises a cleat-shaped transmission box. A cover plate; a bearing position; the first hub bearing is mounted in the bearing position; a flange shaft head; a reduction gear output shaft; the front end of the motor shell is fixedly connected with the cover plate; the motor input shaft is located in the motor shell, and the front end of the motor input shaft penetrates through the cover plate, extends into the containing cavity and is connected with a driving gear; the driven shaft is rotationally connected into the containing cavity, a first driven gear and a second driven gear are fixedly connected to the driven shaft, the first driven gear is meshed with the driving gear, and the second driven gear is meshed with the gear part of the reduction gear output shaft. Power transmission is stable and reliable, parts are easy to disassemble, assemble and replace, occupied space is small, and installation adaptation of a brake system and a suspension system cannot be hindered.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile wheel hub transmission, in particular to a primary gear type ram-horn type transmission box body. Background Art

[0002] Existing automotive motor assemblies are bulky, which leads to major challenges in installation and maintenance in space-constrained occasions, which not only increases the complexity and labor intensity of operations, but may also lead to longer downtime and increased maintenance costs. In addition, due to its complex structure, the disassembly and assembly process often involves multiple steps, such as removing screws, bearings, gears and other components, which require professional tools and skilled operating skills. If the design does not take maintenance convenience into consideration, such as difficult to access internal components or overly compact connection points, even experienced technicians may spend a lot of time during the disassembly and assembly process, further affecting production efficiency and maintenance efficiency. Therefore, in response to this problem, it is necessary to re-examine and optimize the design of the motor reduction device to make it more compact and easy to disassemble and assemble, so as to improve the overall use and maintenance efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a first-stage gear-type ram-horn transmission housing to solve the above-mentioned problems.

[0004] The technical solution of the utility model is implemented as follows: a first-stage gear-type ram-horn type transmission box body, comprising:

[0005] A ram-horn type transmission box body, the upper end of which is fixedly connected with a ram-horn type structure;

[0006] A cover plate, a receiving chamber is formed between the ram-horn-shaped transmission box body and the cover plate;

[0007] A bearing seat, the front end of the ram-horn-shaped transmission box is provided with a bearing seat which is communicated with the accommodating chamber and has a through hole;

[0008] A first wheel hub bearing, the first wheel hub bearing is installed in the bearing position;

[0009] A flange shaft head, a shaft sleeve portion of the flange shaft head passes through the through hole and is sleeved with the inner ring of the first hub bearing, the shaft sleeve portion of the flange shaft head is hollow, and the hollow portion forms a connecting shaft hole;

[0010] The reduction gear output shaft comprises a main shaft portion and a gear portion integrally connected, one end of the main shaft portion passes through the connecting shaft hole and is sleeved with the flange shaft head;

[0011] A motor housing, the front end of which is fixedly connected to the cover plate, the rear end of which is connected to an end cover, and a motor mating surface is provided on the side of the cover plate opposite to the motor housing;

[0012] The motor input shaft is located in the motor housing, and the front end of the motor input shaft passes through the cover plate and extends into the accommodating chamber and is connected to a driving gear;

[0013] A driven shaft is rotatably connected to the accommodating chamber, and a first driven gear and a second driven gear are connected and fixed to the driven shaft;

[0014] The first driven gear is meshed with the driving gear, and the second driven gear is meshed with the gear portion of the reduction gear output shaft.

[0015] Furthermore, a case mating surface is provided on the side of the cover plate facing away from the motor housing, and a first bearing chamber located on the inner wall of the horn-shaped transmission case and a second bearing chamber located on the case mating surface of the cover plate are provided in the accommodating chamber, and second hub bearings adapted to the end of the driven shaft are respectively provided in the first bearing chamber and the second bearing chamber.

[0016] Furthermore, the ram-horn-shaped structure and the ram-horn-shaped transmission box are integrally formed.

[0017] Furthermore, the front end of the first hub bearing abuts against the bearing seat, and the side of the second planet carrier facing the front end of the horn-shaped transmission box abuts against the rear end of the first hub bearing.

[0018] Furthermore, it also includes:

[0019] Brake disc, mounted on the flange shaft head;

[0020] Brake caliper, installed on the horn-shaped transmission housing, used to brake the brake disc;

[0021] Among them, a mounting hole matching with the brake caliper is provided through the upper end of the ram-horn-shaped transmission box body.

[0022] Furthermore, an installation chamber is provided on the inner wall of the end cover, and a rotary transformer is provided in the installation chamber, and the rotor of the rotary transformer rotates synchronously with the input shaft of the motor.

[0023] Furthermore, a third bearing chamber is provided on the motor mating surface of the cover plate, and a fourth bearing chamber is also provided on the inner wall of the end cover. Both ends of the motor input shaft are respectively arranged through the third bearing chamber and the fourth bearing chamber, and the second bearing chamber and the third bearing chamber are respectively provided with a second hub bearing and a third hub bearing adapted to the motor input shaft.

[0024] The beneficial effects of the utility model are:

[0025] The transmission efficiency is high, the energy loss is small, the power transmission is stable and reliable, and it is easy to disassemble and replace parts. It occupies a small space and will not hinder the installation and adaptation of the brake system and suspension system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] FIG1 is a schematic diagram of the structure of a ram-horn type transmission box according to a specific embodiment of the utility model Figure 1 ;

[0028] FIG2 is a schematic diagram of the structure of a ram-horn type transmission box according to a specific embodiment of the utility model Figure 2 ;

[0029] FIG3 is a schematic diagram of the structure of a ram-horn type transmission box according to a specific embodiment of the utility model Figure 3 . DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] As shown in Figures 1 to 3, the utility model discloses a first-stage gear-type ram-horn type transmission housing, comprising:

[0032] A ram-horn type transmission box 1, the upper end of which is fixedly connected with a ram-horn type structure, so that the ram-horn type transmission box can be adapted to the front wheel of the vehicle;

[0033] A cover plate 2, a receiving chamber is formed between the ram-horn type transmission housing 1 and the cover plate 2;

[0034] Bearing position 3: The front end of the ram-horn type transmission housing 1 is provided with a bearing position 3 which is communicated with the accommodation chamber and has a through hole;

[0035] A first wheel hub bearing 4, the first wheel hub bearing 4 is installed in the bearing position 3;

[0036] A flange shaft head 5, the shaft sleeve portion of the flange shaft head 5 passes through the through hole and is sleeved with the inner ring of the first hub bearing 4, the shaft sleeve portion of the flange shaft head 5 is hollow, and the hollow portion forms a connecting shaft hole;

[0037] The reduction gear output shaft 6 includes a main shaft portion and a gear portion integrally connected, and one end of the main shaft portion passes through the connecting shaft hole and is sleeved with the flange shaft head 5;

[0038] The motor housing 7 has a front end fixedly connected to the cover plate, and a rear end connected to an end cover 71. The cover plate 2 has a motor mating surface on one side facing the motor housing 7;

[0039] The motor input shaft 8 is located in the motor housing 7. The front end of the motor input shaft 8 passes through the cover plate 2 and extends into the accommodating chamber and is connected to a driving gear 9. Specifically, the motor input shaft and the driving gear are integrally formed and can also be fixed by a key connection.

[0040] A driven shaft 10 is rotatably connected to the accommodating chamber, and a first driven gear 11 and a second driven gear 12 are connected and fixed to the driven shaft 10; specifically, the first driven gear is key-connected to the driven shaft, and the second driven gear is integrally connected to the driven shaft;

[0041] The first driven gear 11 meshes with the driving gear 9 , and the second driven gear 12 meshes with the gear portion of the reduction gear output shaft 6 .

[0042] In this solution, Figures 2 and 3 show the cooperation structures of two other ram-horn-shaped structures and ram-horn-shaped transmission housings;

[0043] By adopting the above technical solution, the transmission efficiency is high, the energy loss is small, the power transmission is stable and reliable, and it is easy to disassemble and replace parts. It occupies a small space and will not hinder the installation and adaptation of the brake system and the suspension system.

[0044] In this solution, Figures 2 and 3 show the cooperation structures of two other ram-horn-shaped structures and ram-horn-shaped transmission housings;

[0045] This embodiment provides a one-stage gear-type ram-horn transmission housing, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0046] Furthermore, a case mating surface is provided on the side of the cover plate 2 facing away from the motor housing 7, and a first bearing chamber located on the inner wall of the horn-shaped transmission case 1 and a second bearing chamber located on the case mating surface of the cover plate 2 are provided in the accommodating chamber, and a second hub bearing adapted to the end of the driven shaft 10 is respectively provided in the first bearing chamber and the second bearing chamber.

[0047] By adopting the above technical solutions, the power transmission is guaranteed to be smooth, stable and reliable.

[0048] This embodiment provides a one-stage gear-type ram-horn transmission housing, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0049] Furthermore, the ram-horn-shaped structure and the ram-horn-shaped transmission housing 1 are integrally formed.

[0050] By adopting the above technical solution, the connection is stable and reliable. The ram-horn type structure is a ram-horn structure, which can withstand external forces more effectively, thereby improving the stability and durability of the structure. The ram-horn type structure is used as a connecting structure for connecting the drive device to the automobile frame. Specifically, the ram-horn type structure is connected and fixed to the chassis part of the automobile outer frame and can be applied to the front wheel of the automobile.

[0051] This embodiment provides a one-stage gear-type ram-horn transmission housing, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0052] Furthermore, the front end of the first hub bearing 4 abuts against the bearing position 3 , and the side of the second planet carrier 6 facing the front end of the ram-horn type transmission housing 1 abuts against the rear end of the first hub bearing 4 .

[0053] By adopting the above technical solution, the first hub bearing can be axially abutted and pressed against the bearing position, which effectively improves the firmness of the first hub bearing and further improves the stability of the power output of the ram's horn type transmission box.

[0054] This embodiment provides a one-stage gear-type ram-horn transmission housing, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0055] Furthermore, it also includes: a brake disc 14, mounted on the flange shaft head 5; a brake caliper 15, mounted on the ram-horn transmission housing 1, for braking the brake disc 14; wherein, a mounting hole matching the brake caliper 15 is provided through the upper end of the ram-horn transmission housing 1.

[0056] By adopting the above technical solution, the fixing component of the brake caliper can be directly inserted into the knife accommodating chamber for fixing, so that the wheel hub can achieve stable and reliable braking while improving space utilization.

[0057] This embodiment provides a one-stage gear-type ram-horn transmission housing, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0058] Furthermore, an installation chamber is provided on the inner wall of the end cover 71 , and a rotary transformer 121 is provided in the installation chamber. The rotor of the rotary transformer 121 rotates synchronously with the motor input shaft 8 .

[0059] By adopting the above technical solution, accurate speed feedback is provided for the power system of the vehicle.

[0060] This embodiment provides a one-stage gear-type ram-horn transmission housing, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0061] Furthermore, a third bearing chamber is provided on the motor mating surface of the cover plate 2, and a fourth bearing chamber is also provided on the inner wall of the end cover 71. Both ends of the motor input shaft 8 are respectively arranged through the third bearing chamber and the fourth bearing chamber, and the second bearing chamber and the third bearing chamber are respectively provided with a second hub bearing 17 and a third hub bearing 18 adapted to the motor input shaft 8.

[0062] By adopting the above technical solution, the power output of the transmission box is smooth, stable and reliable.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A first-stage gear type ram-horn type transmission housing, characterized in that: include: A ram-horn-shaped transmission housing (1), the upper end of which is fixedly connected to a ram-horn-shaped structure; A cover plate (2), wherein a receiving chamber is formed between the ram-horn-shaped transmission housing (1) and the cover plate (2); A bearing seat (3), wherein the front end of the ram-horn-shaped transmission housing (1) is provided with a bearing seat (3) which is in communication with the accommodating chamber and has a through hole; A first wheel hub bearing (4), the first wheel hub bearing (4) being installed in the bearing position (3); a flange shaft head (5), the shaft sleeve portion of the flange shaft head (5) passing through the through hole and being sleeved with the inner ring of the first wheel hub bearing (4), the shaft sleeve portion of the flange shaft head (5) being hollow, the hollow portion forming a connecting shaft hole; The reduction gear output shaft (6) comprises a main shaft portion and a gear portion integrally connected, one end of the main shaft portion passing through the connecting shaft hole and sleeved with the flange shaft head (5); a motor housing (7), wherein the front end of the motor housing (7) is fixedly connected to the cover plate (2), the rear end of the motor housing (7) is connected to an end cover (71), and a motor mating surface is provided on a side of the cover plate (2) opposite to the motor housing (7); a motor input shaft (8) is located in the motor housing (7), the front end of the motor input shaft (8) passes through the cover plate (2) and extends into the accommodating chamber and is connected to a driving gear (9); A driven shaft (10) is rotatably connected to the accommodating chamber, and a first driven gear (11) and a second driven gear (12) are connected and fixed to the driven shaft (10); The first driven gear (11) is meshed with the driving gear (9), and the second driven gear (12) is meshed with the gear portion of the reduction gear output shaft (6).

2. A one-stage gear type clevis type transmission housing according to claim 1, characterized in that: A housing mating surface is provided on a side of the cover plate (2) facing away from the motor housing (7), a first bearing chamber located on the inner wall of the horn-shaped transmission housing (1) and a second bearing chamber located on the housing mating surface of the cover plate (2) are provided in the accommodating chamber, and a second wheel hub bearing adapted to the end of the driven shaft (10) is provided in the first bearing chamber and the second bearing chamber respectively.

3. A one-stage gear type clevis type transmission housing according to claim 1, characterized in that: The ram-horn-shaped structure and the ram-horn-shaped transmission housing (1) are integrally formed.

4. A one-stage gear type clevis type transmission housing according to claim 1, characterized in that: The front end of the first wheel hub bearing (4) abuts against the bearing position (3), and the side of the gear portion of the reduction gear output shaft (6) facing the front end of the horn-shaped transmission housing (1) abuts against the rear end of the first wheel hub bearing (4).

5. A one-stage gear type clevis type transmission housing according to claim 1, characterized in that: Also includes: A brake disc (14) is mounted on the flange shaft head (5); a brake caliper (15) is mounted on the ram-horn type transmission housing (1) and is used to brake the brake disc (14); wherein a mounting hole matching the brake caliper (15) is provided through the upper end of the ram-horn type transmission housing (1).

6. A one-stage gear type clevis type transmission housing according to claim 1, characterized in that: An installation chamber is also provided on the inner wall of the end cover (71), and a rotary transformer (121) is provided in the installation chamber. The rotor of the rotary transformer (121) rotates synchronously with the motor input shaft (8).

7. A one-stage gear type clevis type transmission housing according to claim 1, characterized in that: A third bearing chamber is provided on the motor mating surface of the cover plate (2), and a fourth bearing chamber is further provided on the inner wall of the end cover (71). Both ends of the motor input shaft (8) are respectively arranged through the third bearing chamber and the fourth bearing chamber. A second hub bearing (17) and a third hub bearing (18) adapted to the motor input shaft (8) are respectively provided in the second bearing chamber and the third bearing chamber.

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